Nimmo tweaked his swing this off-season in the hopes of unlocking more power, the NY Post reports.Kimmo worked with new hitting coach Kevin Long and assistant hitting coach Pat Roessler and is now set up a little lower to the ground while also turning his hips more at contact. those changes have resulted in Nimmo driving the ball more than he had in the past. Nimmo, the 13th overall pick in the 2011 draft, is still filling out, aided by the offseason workout plan several Mets are following, as he is now up to 205 pounds on his 6-foot-3 frame. Many scouts believe that Nimmo, who likely will begin 2015 at Double-A Binghamton, could be up in the majors by next season.